Add some hierarchy to classes, so generics can be used

Trakt/Api/DataContracts/BaseModel/TraktEpisodeId.cs

@@ -1,13 +1,6 @@
 namespace Trakt.Api.DataContracts.BaseModel
 {
-    public class TraktEpisodeId : TraktId
+    public class TraktEpisodeId : TraktTVId
     {
-        public string imdb { get; set; }
-
-        public int? tmdb { get; set; }
-
-        public int? tvdb { get; set; }
-
-        public int? tvrage { get; set; }
     }
 }

Trakt/Api/DataContracts/BaseModel/TraktIMDBandTMDBId.cs

@@ -0,0 +1,9 @@
+namespace Trakt.Api.DataContracts.BaseModel
+{
+    public class TraktIMDBandTMDBId : TraktId
+    {
+        public string imdb { get; set; }
+
+        public int? tmdb { get; set; }
+    }
+}

Trakt/Api/DataContracts/BaseModel/TraktMovieId.cs

@@ -1,9 +1,6 @@
 namespace Trakt.Api.DataContracts.BaseModel
 {
-    public class TraktMovieId : TraktId
+    public class TraktMovieId : TraktIMDBandTMDBId
     {
-        public string imdb { get; set; }
-
-        public int? tmdb { get; set; }
     }
 }

Trakt/Api/DataContracts/BaseModel/TraktPersonId.cs

@@ -1,11 +1,7 @@
 namespace Trakt.Api.DataContracts.BaseModel
 {
-    public class TraktPersonId : TraktId
+    public class TraktPersonId : TraktIMDBandTMDBId
     {
-        public string imdb { get; set; }
-
-        public int? tmdb { get; set; }
-
         public int? tvrage { get; set; }
     }
 }

Trakt/Api/DataContracts/BaseModel/TraktShowId.cs

@@ -1,14 +1,7 @@
 
 namespace Trakt.Api.DataContracts.BaseModel
 {
-    public class TraktShowId : TraktId
+    public class TraktShowId : TraktTVId
     {
-        public string imdb { get; set; }
-
-        public int? tmdb { get; set; }
-
-        public int? tvdb { get; set; }
-
-        public int? tvrage { get; set; }
     }
 }

Trakt/Api/DataContracts/BaseModel/TraktTVId.cs

@@ -0,0 +1,10 @@
+
+namespace Trakt.Api.DataContracts.BaseModel
+{
+    public class TraktTVId : TraktIMDBandTMDBId
+    {
+        public int? tvdb { get; set; }
+
+        public int? tvrage { get; set; }
+    }
+}